Agarwal S K <br/><br/>
Fundamentals of ecology 

 - New Delhi   Ashish Publishing House India        1992 
 - xvi,442p. Bib p. 393-437  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geography-Modern
<br/><br/><label>Dewey Class. No.: </label>U:(G:5), N2